$ git clone -n http://fedora.riscv.rocks:3000/rpms/libarrow.git /var/lib/mock/f41-build-814971-149314/root/chroot_tmpdir/scmroot/libarrow
Cloning into '/var/lib/mock/f41-build-814971-149314/root/chroot_tmpdir/scmroot/libarrow'...
$ git fetch origin e12828d971ece5c2a4bd1d4e29449bd09d79bd92:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/libarrow
 * [new ref]         e12828d971ece5c2a4bd1d4e29449bd09d79bd92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e12828d Rebuilt for Fedora/RISCV (riscv64); adding .rvreX to Release: